Generator light



July 29, 1947.

M. M MATH GENERATOR LIGHT Filed NOV. 11, 1944 2 Sheets-Sheet 1 INVHVTOR.MARI- MC MATH 1 rron/vex July 29, 1947. M. McMATH I 2,424,700

GENERATOR LIGHT Filed Nov. 11, 1944 2 Sheets-Sheet 2 ATTORNEY.

Patented July 29, 1947 GENERATOR LIGHT Marl McMath, Newport, Ky.,assignor to Dayton Acme 00., Cincinnati, Ohio Application November 11,1944, Serial No. 562,952

3 Claims.

This invention relates to a new and improved generator light wherein thepropelling force is created by a hand pumping action to rotate a trainof gears for driving the magnetic rotor to impart a changing flux to anarmature having an external load circuit connected thereto.

The object of my invention is to provide a unit carrying all therotating parts and insertable into a case.

A further object is to provide improved means for assembling thecomponent parts of the light.

A further object is to provide means of assembly whereby the entirelight is waterproof.

My invention will be further readily understood from the followingdescription and claims, and from the drawings, in which latter:

Fig. 1 is a longitudinal section of my improved light.

Fig. 2 is ,a side view of the insert with one section removed.

Fig. 3 is a side view of the insert with the retaining section in place.

Fig. 4 is an end view of the insert.

Fig. 5 is a perspective view of the case.

Fig. 6 is a detail section, taken in the plane of the line 66 of Fig. 7.

Fig. '7 is a detail section, taken in the plane of the line 1! of Fig.1; and,

Fig. 8 is a perspective view of the head holding clip.

My improved light comprises a casing I I having an opening I2 arrangedto receive an insert I3. The insert comprises a two part shell l4 and [5having suitable bearings in inserts to support the shafts oftherespective gears and magnetic rotor. A two part armature [6 having acoil l1 thereon is secured to one of the shells as by rivets l8 andencompasses a permanent magnetic rotor l9 journalled in bearings in theinsert.

The force to rotate the rotor I9 is applied by a handle pivoted to thecase as at 2| and contacting a rack bar 22 reciprocating in slides 23and 24 in one of the shells and urged upwardly by a spring 25. The rackbar is provided with teeth 26 engaging a pinion gear 21 secured to aratchet wheel 28. A gear 29 rotates freely on the pinion gear shaft andhas a pawl 30 pivoted thereon and held in engagement with the ratchetwheel by a spring 3|. Thus as the rack is reciprocated continual rotarymotion is imparted to the gear 29, which meshes with a pinion gear 32secured to a gear 33 meshing with a pinion gear 34 secured to the rotorIS. The two mating shells of the insert are provided with metallicbearing inserts to journal the shafts of the respective gears. A pair ofcontact members 35 and 36 are riveted to one shell and the respectiveends of the coil I! are attached thereto to form an electrical circuitto a light bulb 31 secured in a reflector 38 held in the lamp head 39 bythe lens 40 which has threaded connection with the head.

The casing l l is provided with internal grooves 4| to receive sideextrusions 42 of the insert to position the insert in the casing. Anaperture 43 in the casing receives a threaded plug 44 which guides therack rod 22 and is threaded into the insert I3. This plug positions theinsert lengthwise of the casing. A rubber bellows 45 is received aboutthe rod 22 and connects to the plug 44 to prevent water or moisture toenter the mechanism.

A spring clip 46 has extending legs 41 which snap into recesses 48 toform attaching means for the lamp head. A screw 49 is threaded into theclip to hold the head in place. The head has a flange 50 received in thecasing. An aperture 5| is provided in the base of the head to receive aspare lamp bulb 52 held in a clip 53 which serves the dual purpose ofholding the lamp and engaging the inner wall of the aperture.

A clip 54 is so shaped to hold the handle in closed position and when itis desired to use the flashlight, squeezing the handle Pushes the clipaway for free-working of the handle.

To operate the light, the handle is squeezed toward the casing allowingthe spring 25 to push it out. Thus, successive movements of the handlecauses the gears to impart rotation to the magnetic rotor, the changingflux of which energizes the coil for imparting electrical current to thelight.

It will be apparent from the foregoing that I have devised a practical,durable hand-powered generator light, which is readily assembled and.wherein the working mechanism is contained in a unit insertable in acase.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

l. A hand powered generator light comprising a frame, a plurality ofgears in said frame, a magnetic generator in said frame driven by saidgears, an armature in association withsaid rotor, an open-endedone-piece casing, said frame provided with extrusions, said casingprovided with grooves to receive said extrusions for positioning saidframe in said casing, a head structure including a light, means forsecuring said head structure tosaid casing comprising a clip extendingfrom said casing and engaged by a screw extending through said headstructure, and means for locating said frame endwise in said casing.

2. A hand powered generator light comprising a frame, a plurality ofgears in said frame, a magnetic rotor in said frame driven by saidgears, an armature in association with said rotor, an open-endedone-piece casing received over said frame, a head structure including alight, means for securing said head structure to said casing comprisinga clip received in grooves adjacent to the open end of said casing andextending forwardly to be engaged by a screw received through said headstructure, a plug for locating said frame in said casing, a gear rackextending through said plug and a handle for actuating said rack.

3. A hand powered generator light comprising a magnetic generator, atrain of gears for actuating said generator, a two-part frame supportingsaid generator and gears, a casing, an opening at one end of saidcasing, said frame insertable in said casing and being guided therein,means extending through said casing and frame for actuating said gears,a guide for said means positioning said frame in said casing, a pair ofcontacts extending from said frame having electrical connection withsaid generator, a head structure attachable to the open end of saidcasing, and a lamp assembly in said head structure forming an electricalconnection with said contacts.

MARL McMATH.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

